Twitter to begin charging brands for commercial use — LONDON - Twitter is planning to charge brands for using the micro-blogging website. — Twitter — Co-founder Biz Stone told Marketing: 'We are noticing more companies using Twitter and individuals following them.

$99 iPhone Coming This Summer: RBC (AAPL) — Apple will start selling a cheaper, ‘entry-level’ iPhone sometime this summer, for around $99 after subsidy, according to “checks,” RBC analyst Mike Abramsky said in a note this morning. — The main cost reductions would come from fewer features …

Apple, Google, and Palm — M.G. Siegler has an intriguing report today regarding the lack of multi-touch support in the current Android OS: … This jibes with a story I heard several months ago from a source who works at Apple, which is that Google showed Apple legal a pre-release prototype of the HTC G1 …

The writing is on the paywall — There has been much interesting speculation about the future of the newspaper business in recent weeks. There was Michael Hirschorn's pre-obituary for the print edition of the New York Times in The Atlantic. He foresees the Times shrinking into “a bigger …

Sirius XM Prepares Bankruptcy Filing — Sirius XM Satellite Radio has been working with advisers to prepare for a possible bankruptcy filing in a move that could put pressure on the satellite company EchoStar, which owns a substantial amount of the company's debt.

Feed serving and FeedBurner application outage — Issue: FeedBurner stopped serving feeds for about 45 minutes today, starting at approximately 9:15am PST. Most feeds are being served again properly, but we are still working to restore full service. feedburner.google.com is not currently available …

Microsoft patches four critical IE, Exchange holes — Updated at 12:30 p.m. PST with nCircle comment. — Microsoft on Tuesday released security updates that fix four critical vulnerabilities in Internet Explorer and Exchange Server that could allow an attacker to take control of an affected computer remotely.

Intel demos first-ever 32nm processors — Intel had a little roadmap event today to shed some light on its massive $7b fab investment, and the focus was mostly on the upcoming transition to 32nm processors — highlighted by the first-ever demo of a working 32nm Nehalem-based Westmere chip.

How to become an iPhonedeveloper in eight easy steps — You've probably heard all about iShoot. Written by a programmer at Sun Microsystems in his spare time, this Worms-style artillery shooter blasted to the top of the App Store charts earlier this year and stayed there for weeks earning …

Apple's “sticky” iPhone — When Barclays' Ben Reitzes refers to the “stickiness” of Apple's iPhone, he's not talking about adhesives on the product's surface. (Indeed, the iPhone seems to us as slippery as ever, which may be why there's such a lively market in protective cases.)

The Secret to Start-Up Success: Save Customers Money — These days, venture capitalists are ever more cautious with their money. The way to catch their eye? Pitch a company whose mission is to save customers money. — That is the advice from three venture capitalists who invest …

How Microsoft is trying to make its $1.3b Fast Search deal work — Microsoft today will unveil plans to start incorporating Fast Search's technology into its products, rolling out a blueprint for capitalizing on one of the largest acquisitions in its history. — It still remains to be seen if the $1.3 billion deal will pay off.

Open source video player, aggregator Miro goes 2.0 — The team behind open source internet video player Miro have pushed out version 2.0. The new player features a new interface, improved speed and performance, and the ability for users to add links to online streaming video portals like Hulu and CBS.com to the sidebar.

Twitter Fast Growing Beyond Its Messaging Roots — Thanks to its open-ended design and a thriving user community, Twitter is fast outgrowing its roots as a simple, easy-to-use messaging service. Enterprising hackers are creating apps for sharing music and videos, to help you quit smoking and lose weight …

IBM Scorns Cisco and Gets Serious About Clouds — IBM yesterday trumpeted its cloud computing strategy with a demonstration at its Silicon Valley campus and a press release touting new customers, products and other tidbits we are going to ignore (you can read the release here).

Southwest to begin testing in-flight Wi-Fi — Southwest Airlines, a pioneer in no-frills flying, said Monday it will begin testing in-flight Wi-Fi Internet. — The Fort Worth-based airline said a satellite-based system has been installed on one aircraft and will be turned on Monday.